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Finding the Fourth Proportional to 118,520.21, 163,552.15 and 67,544.89

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Solution

The fourth proportional to 118,520.21, 163,552.15 and 67,544.89 is: 93,208.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,520.21 : 163,552.15 = 67,544.89 : x
  2. Step 2: Convert to fraction form
    118,520.21/163,552.15 = 67,544.89/x
  3. Step 3: Cross multiply
    118,520.21x = 163,552.15 × 67,544.89
  4. Step 4: Simplify right side
    118,520.21x = 11,047,111,981.01
  5. Step 5: Solve for x
    x = 11,047,111,981.01/118,520.21
  6. Step 6: Final answer
    x = 93,208.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.